DE59704583D1 - Air filter - Google Patents

Air filter

Info

Publication number
DE59704583D1
DE59704583D1 DE59704583T DE59704583T DE59704583D1 DE 59704583 D1 DE59704583 D1 DE 59704583D1 DE 59704583 T DE59704583 T DE 59704583T DE 59704583 T DE59704583 T DE 59704583T DE 59704583 D1 DE59704583 D1 DE 59704583D1
Authority
DE
Germany
Prior art keywords
prefilter
air
main air
sensor
air stream
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE59704583T
Other languages
German (de)
Inventor
Axel Gelhoet
Kai-Uwe Preikszas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wagner Group GmbH
Original Assignee
Wagner Alarm- und Sicherungssysteme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wagner Alarm- und Sicherungssysteme GmbH filed Critical Wagner Alarm- und Sicherungssysteme GmbH
Application granted granted Critical
Publication of DE59704583D1 publication Critical patent/DE59704583D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
    • G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/2247—Sampling from a flowing stream of gas
    • G01N2001/227—Sampling from a flowing stream of gas separating gas from solid, e.g. filter

Abstract

An air filter, especially in an air line (2) for taking air samples for an air flow sensor (4), from a main air stream (10), comprises a sensor housing (8). A prefilter member (1) has a conical point (3) which is located against the flow direction in the main air stream. The main air flow passes along the mantle surface (5) of the prefilter. A T-shaped flow channel (7) is connected to the line (2) which runs to the sensor (4), and has an inlet section (9) which runs laterally to the main air stream, and laterally with respect to the longitudinal axis (28) of the prefilter.
DE59704583T 1996-07-15 1997-07-02 Air filter Expired - Lifetime DE59704583D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19628456A DE19628456C2 (en) 1996-07-15 1996-07-15 Air filter

Publications (1)

Publication Number Publication Date
DE59704583D1 true DE59704583D1 (en) 2001-10-18

Family

ID=7799858

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19628456A Expired - Fee Related DE19628456C2 (en) 1996-07-15 1996-07-15 Air filter
DE59704583T Expired - Lifetime DE59704583D1 (en) 1996-07-15 1997-07-02 Air filter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19628456A Expired - Fee Related DE19628456C2 (en) 1996-07-15 1996-07-15 Air filter

Country Status (3)

Country Link
EP (1) EP0819460B1 (en)
AT (1) ATE205411T1 (en)
DE (2) DE19628456C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009038627A1 (en) * 2009-08-26 2011-03-17 Phoenix Fire Beteiligungs Gmbh Fire protection method, particularly for keeping free emergency exit, involves detecting fire by detector and producing fog from fire extinguishing agent by atomizer
CN108801711A (en) * 2017-05-05 2018-11-13 中国辐射防护研究院 A kind of aerosol sampler quickly connected

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331203A1 (en) * 1983-08-30 1985-03-14 Securiton AG, Zollikofen, Bern Device for monitoring the velocity of a gas flow in a duct
FR2625582B1 (en) * 1988-01-04 1994-05-06 Cerberus Guinard FIRE DETECTION DEVICE
FR2640046B1 (en) * 1988-12-06 1991-02-22 Inst Nal Rech Securite PORTABLE INDIVIDUAL SENSOR FOR COLLECTING A DETERMINED FRACTION OF SOLID SUSPENSIONS OF AN ATMOSPHERE
DE3931293A1 (en) * 1989-09-20 1991-03-28 Schuette Reiner Air sample extractor for measuring harmful material concn. in earth - has measuring arrangement connected to suction tube inside hollow conical probe of steel with air openings
DE4427165A1 (en) * 1994-08-01 1996-02-08 Matthias Kleindienst Probe for measuring solids or liquids in gas streams e.g. gas-borne particles in process and emission control systems
DE9414414U1 (en) * 1994-09-06 1994-10-27 Brigon Messtechnik Michael Ihr Condensate separator

Also Published As

Publication number Publication date
EP0819460A1 (en) 1998-01-21
DE19628456A1 (en) 1998-01-29
EP0819460B1 (en) 2001-09-12
ATE205411T1 (en) 2001-09-15
DE19628456C2 (en) 2001-03-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: WAGNER GROUP GMBH, 30853 LANGENHAGEN, DE